hg: jdk/sandbox: 8222090: Add Hygon Dhyana processor support

[chris.hegarty at oracle.com]

Changeset: a2795025f417
Author:    dholmes
Date:      2019-04-11 19:36 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/a2795025f417

8222090: Add Hygon Dhyana processor support
Reviewed-by: kvn, dholmes, coleenp, rwestberg
Contributed-by: Jinke Fan <fanjinke51 at yeah.net>

! src/hotspot/cpu/x86/assembler_x86.cpp
! src/hotspot/cpu/x86/vm_version_ext_x86.cpp
! src/hotspot/cpu/x86/vm_version_x86.cpp
! src/hotspot/cpu/x86/vm_version_x86.hpp